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Russian scientist Denis Logunov, a lead developer of the Sputnik V coronavirus vaccine, said on Friday that the shot had proven itself 97.6 percent effective against COVID-19 in a real-world assessment, based on data from 3.8 million people.
The new effectiveness rate is higher than the 91.6 percent rate outlined in results from a large-scale trial of Sputnik V and published in The Lancet medical journal earlier this year.
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Using a database of people who received both doses of the vaccine, scientists at Moscow’s Gamaleya Institute, which developed it, calculated a real-world effectiveness rate of 97.6 percent, Logunov said during a presentation for the Russian Academy of Sciences.
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